alleryयदि कोई मान 500 से घटकर 400 हो जाता है, तो प्रतिशत कमी क्या है?
A20%
B25%
C15%
D10%
Answer & Solution
Correct answer: A. 20%
कमी = 500 - 400 = 100। प्रतिशत कमी = (100 / 500) * 100 = 20%।
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